Digital modules - SM 321 digital input

Digital input modules can be used to connect the PLC to digital process signals. They are suitable for connecting standard switches and two-wireproximity switches (BERO).
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Digital modules - SM 321 digital inputCA 01 Digital modules - SM 321 digital inputDigital modules - SM 321 digital inputOverview Digital inputs For connecting standard switches and two-wire proximity switches (BERO)ApplicationDigital input modules can be used to connect the PLC to digital process signals. They are suitable for connecting standard switches and two-wireproximity switches (BERO).DesignDigital input modules are characterized by the following mechanical features: Compact configuration: The rugged plastic housing contains: Green LEDs to indicate signal states at the inputs Slot for front connector, protected by a front cover Labeling area on the front cover. Easy installation: There are no slot rules; the addresses of the inputs are predetermined by the slot. When they are used in the ET 200M in combination with active bus modules, hot-swapping is possible. User-friendly wiringFunctionDigital input modules convert the levels of the external digital signals from the process into the internal signal level of the PLC.Technical specificationsSeite 1 von 5CA 01 Digital modules - SM 321 digital input 6ES7 321-1BH02-0AA0 6ES7 321-1BH50-0AA0 6ES7 321-1BL00-0AA0 6ES7 321-1BH10-0AA0Voltages and currentsLoad voltage L+ Rated value (DC) 24 V 24 V 24 V 24 VCurrent consumption from load voltage L+ (no load), 25 mA max. from backplane bus 5 V DC, 10 mA 10 mA 15 mA 110 mA max. Power dissipation, typical 3.5 W 3.5 W 6.5 W 3.8 WConnection system Requisite front connector 20-pin 20-pin 40-pin 20-pinClock synchronism Clock synchronous operation No No No YesDigital inputs Number of digital inputs 16 16 32 16Number of inputs that can be driven inparallel vertical mounting positions up to 40°C 16 16 32 16 horizontal mounting positions up to 40°C 32 up to 60°C 16 16 16 16Length of cable Length of cable shielded, 1,000 m 1,000 m 1,000 m 1,000 m max Length of cable unshielded, 600 m 600 m 600 m 600 m max Input characteristic to comply Yes Yes Yes Yes with IEC 1131, Type 1Input voltage Rated value, DC 24 V 24 V 24 V 24 V for signal 0 -30 V to 5 V 30 V to -5 V -30 to 5 V -30 V to 5 V for signal 1 13 to 30 V -13 to -30 V 13 to 30 V 13 to 30 VInput current for 1 signal, typical 7 mA 7 mA 7 mA 7 mAInput delay (at rated value of the inputvoltage) For standard inputs at 0 to 1, min. 1.2 ms 1.2 ms 1.2 ms 25 µs at 0 to 1, max. 4.8 ms 4.8 ms 4.8 ms 75 µsSensorConnectable encoders 2-wire BEROS Yes Yes Yes Yes permissible closed-circuit 1.5 mA 1.5 mA 1.5 mA 1.5 mA current (2-wire BEROS), max.Status information/ interrupts/diagnosticsInterrupts Interrupts No No No NoDiagnostics Diagnostic functions No No No NoDiagnostic display LED Status display digital input Yes Yes Yes Yes (green)Insulation Insulation tested with 500 V DC 500 V DC 500 V DC 500 V DCPotentials/ electrical isolationDigital input functions between the channels Yes between the channels, in 16 16 16 16 groups of between the channels and Yes; Optocoupler Yes; Optocoupler Yes; Optocoupler Yes; Optocoupler the backplane busDimensions and weight Width 40 mm 40 mm 40 mm 40 mm Height 125 mm 125 mm 125 mm 125 mm Depth 120 mm 120 mm 120 mm 120 mm Weight, approx. 200 g ...